Electronic Structure of Fe-Pd Alloys Studied by Using Photoemission Spectroscopy

다국어 초록 (Multilingual Abstract)

We investigated the electronic structure of FexPd1−x (x = 0.25, 0.5, and 0.75) alloys by measuring valence-band and core-level photoelectron spectra. The Fe 3d and Pd 4d partial spectral weights were determined by using the Cooper minimum phenomenon of the Pd 4d photoionization cross section. We found that the experimentally determined Fe partial spectral weight of Fe50Pd50 alloy differ much from the band calculation results, and we could not observe a spectral structure due to the Pd 4d states mixed with the Fe 3d majority states at the binding energy of 0.9 eV. We suggest that a plausible explanation for these discrepancies should be the spin-dependent lifetime of the Fe 3d states.

참고문헌 (Reference)

1 A. Oswald, 56 : 1419-, 1986

2 V. P. Zhukov, 73 : 125105-, 2006

3 J. Buschbeck, 77 : 174421-, 2008

4 I. Opahle, 94 : 072508-, 2009

5 P. Ravindran, 63 : 144409-, 2001

6 V. P. Zhukov, 93 : 096401-, 2004

7 C. A. Kuhnen, 46 : 8915-, 1992

8 P. Mohn, 46 : 651-, 1993

9 Y. S. Shi, 65 : 172410-, 2002

10 I. Galanakis, 61 : 599-, 2000

11 D. Garc´ıa, 63 : 104421-, 2001

12 S. S. A. Razee, 13 : 8153-, 2001

13 J. F. van Acker, 43 : 8903-, 1991

14 J. J. Yeh, 32 : 1-, 1985

15 S. L. Molodtsov, 85 : 4184-, 2000

16 T-U. Nahm, 52 : 16466-, 1995

17 T-U. Nahm, 54 : 7807-, 1996

18 T-U. Nahm, 15 : 3181-, 2003

19 T-U. Nahm, 51 : 8140-, 1995

20 A. ¨Ostin, 93 : 155152-, 2016

21 M. Takahashi, 85 : 085128-, 2012

22 F. U. Hillebrecht, 27 : 2179-, 1983

23 M. M. Steiner, 45 : 13272-, 1992

24 S.-H. Song, "Photoemission Spectroscopic Study on the Electronic Structure of Fe-Pt Alloys" 한국물리학회 45 (45): 51-54, 2004

25 T. B. Massalski, "Binary Alloy Phase Diagrams" ASM International 1986